Flexor and Extensor

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Topic: Flexor and Extensor Muscles

Question: Which muscles are stronger, flexor or extensor muscles?

Hypothesis: My hypothesis is the flexor muscles is going to be the stronger. Because you can flex better then extensor.

Procedure:
  1. Get into groups
  2. Have one person stand up straight with his / her back against a wall.
  3. Have that person hold the weights in his / her dominant hand
  4. In a "curling" motion, have the student raise and lower the weights until his / her arms get tired.
  5. Repeat steps 2-4 for each member of the group.
  6. Record the data for each member of the group.
  7. Have the first person stand as straight as possible near a wall.
  8. Have the student hold the weights with his / her dominant arm bent near the ear.
  9. In a motion that mimics throwing, have the student extend the weights above his / her head until the dominant arm gets tired.
  10. Repeat steps 7-9 for each member of the group.
  11. Record the data for each member of the group.

Data:
flexorextensor205.xls

Group Member
Member 1 (J)
 Flexor Muscle
30
 Extensor Muscle
70
Member 2 (A)
 27
 30
Member 3 (C)
 150
 37
Member 4 (M)
 23
 6
Member 5 (A.C)
 60
 35
Member 6 (A.H)
 45
 ??
Conclusion: My hypothesis was right. Because the flexing was better and easier, and the extensor was very hard.